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  1. Integer.metaClass.nextLargest = {
  2.     def del = delegate
  3.     return ("$del"*.toInteger().permutations()*.join()*.toInteger().findAll{it>del}.sort()[0])
  4. }
  5. println ([1234, 1243, 234765, 19000]*.nextLargest())
Success #stdin #stdout 1.16s 4456448KB
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Standard input is empty
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[1243, 1324, 235467, 90001]
https://ideone.com/TLS7mR
language:
Groovy (groovy 2.5.6)
created:
7 years ago
visibility:
public

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